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| author |   Zac Medico <zmedico@gentoo.org> | 2021-04-09 11:26:49 -0700 |
|---|---|---|
| committer | Zac Medico <zmedico@gentoo.org> | 2021-05-23 23:44:57 -0700 |
| commit | 1f3bfcb357c3f262730175f4d59c11e1ed4f8dc3 (patch) | |
| tree | 06a1378fba22bfa1db0c7f3f5a6bab4294497ba9 /man/make.conf.5 | |
| parent | lib/portage/_sets/dbapi.py: add glob support to exclude-files parameter cnf/s... (diff) | |
| download | portage-1f3bfcb357c3f262730175f4d59c11e1ed4f8dc3.tar.gz portage-1f3bfcb357c3f262730175f4d59c11e1ed4f8dc3.tar.bz2 portage-1f3bfcb357c3f262730175f4d59c11e1ed4f8dc3.zip | |
make.conf.5: Suggest PORTAGE_LOG_FILTER_FILE_CMD supervisor for cat fallback (bug 781854)
If PORTAGE_LOG_FILTER_FILE_CMD fails after exec, then output
will be lost. Therefore, suggest to use bash as a supervisor,
with fallback to cat.
Bug: https://bugs.gentoo.org/781854
Signed-off-by: Zac Medico <zmedico@gentoo.org>
Diffstat (limited to 'man/make.conf.5')
| -rw-r--r-- | man/make.conf.5 | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/man/make.conf.5 b/man/make.conf.5 index badaea18e..1c72109ad 100644 --- a/man/make.conf.5 +++ b/man/make.conf.5 @@ -998,7 +998,18 @@ will set idle io priority. For more information about ionice, see .B PORTAGE_LOG_FILTER_FILE_CMD This variable specifies a command that filters build log output to a log file. In order to filter ANSI escape codes from build logs, -\fBansifilter\fR(1) is a convenient setting for this variable. +\fBansifilter\fR(1) is a convenient setting for this variable. Generally, +PORTAGE_LOG_FILTER_FILE_CMD should include a supervisor that falls back +to cat if the real filter command fails after exec. For example, a +supervisor is needed for ansifilter, in case it fails after exec due to +a problem resolving libstdc++ during a gcc upgrade. +.br +.I Example: +.nf +# Use bash as a supervisor, for fallback to cat if ansifilter fails +# after exec due to a problem resolving libstdc++ during a gcc upgrade. +PORTAGE_LOG_FILTER_FILE_CMD="bash -c \\"ansifilter; exec cat\\"" +.fi .TP .B PORTAGE_LOGDIR This variable defines the directory in which per\-ebuild logs are kept. |